Device for charging and discharging smelting furnaces



Aug. 18, 1925.

M. TAMA DEVICE FOR CHARGING AND DISCHARGING SMELTING FURNACES Filed Dec. 26, 1924 Fig. 1.

Patented Aug. is, 1925.

UNITED STATES PATENT'OFFICE.

MANUEL TAMA, 0F WANNSEE, NEAR BIERLIN, GERMANY. ASSIGNOR T0 AJAX METAL COMPANY OF PHILADELPHIA U. S. A., A CORPORATION OF UNITED STATES OF AMERICA.

DEVICE FOR CHARGING AND DISCHARGING SMELTING FURNACES.

Application filed December 26, 1924. Serial No. 758,205.

To (ZZZ whom it mail concern:

Be it known that I, M NUEL TAMA. acitizen of the Republic of Ecuador,residing at t) Friedrich Karlstra-sse, \Vannsee, near Berlin, Germany, have invented certain new and useful Improvements in or Relating to a Device for Charging and Discharging Smelting Furnaces, of which the following is a Specification.

It is already known to arrange smelting furnaces in such a manner that they can be turnedor tilted on or around an axle in order to permit the charging and the discharging. The present invention resides-in arranging that axle relatively to the charging floor in such a manner that the charging aperture lies, in the position of rest of the furnace, flush with said floor, whereas the floor-part si'n'rounding said aperture can swing, or be tilted, together with the furnace in order to render possible a free rocking or oscillating motion of the furnace. The advantage thereby attained is that the material to be introduced into the furnace can bebrought on to the lattervery conveniently without the discharging of the furnaee being impaired or impeded by the charging floor.

My invention is illustrated diagrammaticall) by way of example on the accompanying drawing, in which Figure 1 is a vertical section through a portion of a foundry house in which my improved smelting fun Dace is put up, and Figure 2 is a plan of that portion. i

n denotes the furnace which is preferably an electric one; it can be turned or tilted on an axle I), carried by two lateral standards 0 0. Attached to the furnace a is one end of a rope (Z, the other end of which is connected with an electric winch g; the intermediate part of the rope is guided by rolls 0 and f. The rope (Z is attached to the. furnace at the front side of the bottom, between the standards 0 c, and that part of the rope which passes along below the furnace, or its bottom respectively, lies in a curved and grooved guide member h projecting upwards at its free end, as illustrated in Fig. 1.

z denotes the charging floor which lies flush with the top surface: of the furnace at and onto which the material to be introduced into the furnace istransported with the aid of theoverhe'ad travelling crane 7c. The floor proper does not extend to the furnace but there is provided between these two parts of the plant a space which is covered by sheet-metal m lying flush with the floor 27 when the furnace is in its position of rest, as shown in full lines in Fig. l. The sheet-metal floor on affords a very convenient access to the charging opening of the furnace. The floor m is connected firmly with the furnace top and is, therefore, tilted together with the furnace, as indicated in Fig. 1 by dotted lines. The furnace is, therefore freely tiltable without being impeded in the least by the floor 2'.

The winch g is controlled by a starter n disposed on the floor laterally from the furnace.

A plurality of furnaces devised as described may be arranged side by side, the charging tloor being appropriately longer and there being as many tiltable sheet-metal floors 77L as there arefurnaces. In front of the furnaces is a track 0 on which the chill moulds and other moulds to be filled are conveyed to the respective furnace or furnaces.

The furnace is charged when it is in the position shown in full lines in Fig. 1. hen the metal is in liquid state the moulds tobe tilled-are conveyed to the furnace, the

winch-motor is thrown into circuit by the starter n, and the furnace is tilted gradually into the position shown in dotted lines when the liquid metal will flow out into the mould or moulds. The rope (l leaves gradually the curved guide gutter it while the furnace is being tilted. y

I wish it to be understood that alterations may be made in the details of the sinelting plant in general and the furnace in particular. tilted, for instance, by another source of power than electricity it may also be op' erated by a manually actuated device. Furthermore, the furnace may be supported or carried by another means than the standards 0 0. It is, however, essential that the furnace remains on its place relatively to the charging floor, and that that portion of this floor which surrounds the furnace, or its top respectively, be tilted together there- The tiltable floor may be.

with, this tiltable floor-portion lying flush with the stationary other or main floor portion when the furnace is in its position of rest.

I claim:

1. A device for charging and discharging smelting furnaces, especially electric smelting furnaces for'brass and similar alloys, comprising, in combination, a furnace adapted to be tilted; a divided charging floor, one portion being stationary, another portion being adapted to be tilted together with the furnace, said other portion lying-flush with the first-mentioned portion of the charging floor when the furnace is in its position of rest; and means for tilting the furnace and the appertaining floor-portion.

2. A device for charging and discharging smelting furnaces, especially electric smelting furnaces for brass and similar alloys, comprising, in combination, a furnace adapted to be tilted; a divided charging floor, one part thereof being stationary, another part which surrounds the furnace top being secured thereto and being tiltable together with the furnace, said other portion lying flush with the first-mentioned portion of the charging floor when the furnace is in its position of rest; and means for tilting the furnace and the appertaining floor-portion.

3. A device for charging and discharging smelting furnaces, especially electric smelting furnaces for brass and similar alloys, comprising, in combination, a furnace adapt ed to be-tilted; a divided charging floor, one portion being" stationary, another portion being adapted to be tilted together with the furnace, said other portion lying flush with the first-mentioned portion of the charging floor when the furnace is in its position of rest; a rope-winch; a rope extending from the furnace-bottom to said winch; a ropeguiding member provided at said bottom; and means for operating the winch, this means being arranged on the said floor in the proximity of the furnace-top, substantially as set forth.

4. A device for charging and discharging smelting furnaces, especially electric smelting furnaces for brass and similar alloys, comprising, in combination, an axle; a fur nace adapted to be tilted about said axle; a charging orifice at the top of said furnace; and a divided charging floor, one portion being stationary, another portion being adapted to be tilted together with the furnace, said axle being so arranged with respect to the charging floor, that the charging orifice lies, in the position of rest of the furnace, flush with said floor.

5. A device for charging and discharging smelting furnaces, especially electric smelting furnaces for brass and similar alloys, I

comprising, in combination, an axle; a furnace adapted to be tilted about said axle; a charging orifice at the top of said furnace; a divided charging floor, one portion being stationary, another portion being adapted to be tilted together with the furnace, said axle being so arranged with respect to the charging floor, that the charging orifice lies, in the position of rest of the furnace, flush with said floor; and means for tilting the furnace and the appertaining floor-portion.

In testimony whereof I have affixed my signature.

MANUEL TAMA. 

